The kenayers experience with the staining and leaking history is very similar to our own. The new majority owner of Yurtworks has provided a set of instructions for remediation of the design problems with the roof and we have a very good Willamette Valley contractor who is applying them. However they involve a good deal of labor and the whole exercise is not going to be cheap. If you (jimayers) would like to communicate directly on this to compare notes, you can send an email to deepwoods@rocketmail.com with a phone number and I will be happy to give you a call.